Which technique measures distance by analyzing the statistical fluctuation or "bumpiness" in the light profile of a whole galaxy?
Answer
Surface Brightness Fluctuations (SBF)
Surface Brightness Fluctuations (SBF) involves analyzing the statistics of 'bumps' in an image. Closer galaxies appear 'bumpy' due to discrete stars, while distant ones appear smoother as the light blends.
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How Scientists Measure The Distance To Stars and Galaxies
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